Effect of Phosphorus on Microstructure and Properties of Al-Mg₂Si Alloys Subjected to Electromagnetic Stirring

Abstract:

Al-Mg₂Si composite has such advantages as low density, high elastic modules, simple manufacture technology and low cost. However, its strength and ductility need to be enhanced. Thus, the alloying element P was added to control the microstructure of Al-Mg₂Si alloy and furthermore improve the mechanical properties of the composite. The experimental results show that the microstructure of the Al-Mg₂Si alloys subjected to electromagnetic stirring can be significantly refined and the mechanical properties of the alloy get improved due to the addition of phosphorus. It is found that the best modification effect can be achieved when the adding amount of phosphorus is in the range from 0.7% to 1.1% and the holding time is about 15 minutes, and the mechanical properties of the Al-Mg₂Si alloys get markedly enhanced.

• Periodical: Advanced Materials Research (Volumes 291-294)
• Pages: 652-657
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.291-294.652
• Online since: July 2011
• Authors: Yu Yan Ren, Ying Min Li
• Keywords: Al-Mg₂Si Alloy, Electromagnetic Stirring, Mechanical Property, Modification, Phosphorus

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